Acer BV223HQX Schematic

Acer Acer –LCD-B&V223HQ

Service Manual

LCD Monitor Acer B&V223HQ

- 0 -

1

Table of Contents

Important Safety Notice .........................................................................................01

01 Product Specification ..........................................................................................03

02 Flat Panel Specification .......................................................................................18

03 Exploded Diagram ..............................................................................................37

04 Troubleshooting....................................................................................................39

05 Spare Parts List ...................................................................................................44

06 Schematics and Layouts.......................................................................................45

07 Assembly and Disassembly ................................................................................48

Appendix : User’s manual

Copyright

Copyright 2006 InnoLux Tech. Corp. Ltd

All Rights Reserved

This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any
electronic or machine readable form without prior written permission of InnoLux Tech. Corp. Ltd.

Acer B&V223 HQ Service Manual

1

Acer Acer –LCD-B&V223HQ

Important Safety Notice

1. Safety precautions

This monitor is manufactured and tested on a ground principle that a user’s safety comes first.
However, improper used or installation may cause damage to the monitor as well as to the user.

Warning:

z This monitor should be operated only at the correct power sources indicated on the label on the

rear of the monitor. If you’re unsure of the power supply in you residence, consult your local dealer
or Power Company.

z Do not try to repair the monitor by yourself, as it contains no user-serviceable parts. This monitor

should only be repaired by a qualified technician.

z Do not remove the monitor cabinet. There are high-voltage parts inside that may cause electric

shock to human bodies.

z Stop using the monitor if the cabinet is damaged. Have it checked by a service technician.
z Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable

immediately and consult your closed dealer.

z Always unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth. Apply

non-ammonia based cleaner onto the cloth, not directly onto the class screen.

z Do not place heavy objects on the monitor or power cord.

2. Product safety notice

Many electrical and mechanical parts in this chassis have special safety visual inspections and the
protection afforded by them cannot necessarily be obtained by using replacement components rated
for higher voltage, wattage, etc. Before replacing any of these components read the parts list in this
manual carefully. The use of substitute replacement parts, which do not have the same safety
characteristics as specified in the parts list, may create shock, fire, or other hazards.

3. Service notes

z When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.

z Keep wires away from high voltage, high temperature components and sharp edges.

z Keep wires in their original position so as to reduce interference.

z Adjustment of this product please refers to the user’ manual.

2

Acer Acer –LCD-B&V223HQ

01 Product Specification

1.

General:

BV223HQ series LCD monitor is designed with a wide screen 21.5” WSXGA+ TFT LCD panel, LVDS interface,
Analog RGB signal input.
It featured with embedded universal AC power supply and audio input. This monitor can support maximum
resolution up to 1920 x 1080@60Hz.
Details in this document DVI referred to is an option function depending on client’s requirement. In our factory,
products should be distinguished by module names.

1.1 Main Features

Maximum resolution : 1920 x 1080 @ 60Hz
Back light system : 4 CCFL (top & bottom edge side)
Pixel pitch : 0.248 (H) x 0.248 (V)

Display area : 476.64(H)x268.11(V) 21.5 inch diagonal
Brightness : ≥240cd/m²
Contrast ratio : Min 600׃1 (20000:1 when ACM on) (1)
Response time (Tr+Tf) : 5ms (2ms for OD model ) (2)
Viewing angle : 170°(H)/ 160°(V), typ (3)
Input interface : Analog (D-sub 15 pin)
Digital Option(DVI-D 24 pin)

Audio system : ≧ 1.5 W + 1.5 W
Power management : Compatible with VESA DPMS

Plug & Play : VESA DDCCI
OSD language : English, French, Spanish, Italian, Deutsch, Simplified Chinese,

Traditional Chinese, Japanese (Dutch, Finnish, Russian depend on sale region)

Universal AC power supply

Note (1)(2)(3): This item spec depend on the LCD panel.

1.2 Accessories

AC Power Cord : 1.8 m. (Black. Cord type depend on sale region)
VGA cable : 1.8 m. (15 pin D-SUB, black cable with blue male connector)

User manual : English (640Mb CD)
Warranty card
DVI cable (option) : 1.8 m. (18+1 pin, black cable with white connector)
Audio cable : 1.8m. (1P 6FT BLACK/GREE)

2.

Operation Specifications

The unit should suffer no visible cosmetic damage and should operate with no degradation in display quality
during exposure to the operating conditions and after exposure to the non-operating conditions, in any
sequence.

2.1 Environmental conditions

2.1.1 Operating:

Temperature range : 0°C to 40°C
Relative humidity : 20% to 90%

2.1.2 Storage
Temperature range : -20°C to 60°C
Humidity range : 10% to 90%

2.1.3 Altitude

note 1

:

note 2

3

Acer Acer –LCD-B&V223HQ

Operating 10000 ft (Ta=50, t=24h)
Storage 40000 ft (Ta=30, t=24h )

Note 1: Temperature and relative humidity range must be in the area shown as the following figure due to
panel limited
Note 2: Altitude spec must not over panel spec.

Figure 1 Absolute Ratings of Environment

2.2 Safety, EMC, Ergonomics and Compatibility Requirements

cUL, UL, CE, CB, CCC, TUV/EGO,

Safety & EMC

Ergonomics

Compatibility

Power Management

TUV/ISO-13406-2, C-Tick (N214), VCCI, FCC,
CE, CCC, BSMI, C-Tick

TCO99, TCO03
Windows 98/Me/2000, Windows XP, Window

Vista
Energy Star V4

2.3 Electrostatic Discharge Requirements

The subject unit must withstand ±8KV for contact discharge and ±15KV for air discharge of
Electrostatic Discharge and meet the standard of IEC61000-4-2(EN55024). (without
discharge on VGA/DVI/HDMI pin)

2.4 Reliability

The MTBF of this product shall be greater than 40,000 hours excluding the LCD panel. The LCD panel
life which is defined as the time period for the maximum luminance to reduce to 50% of the initial
value is 40,000 hours minimum at the condition of displaying an all WHITE field at mid Brightness
and Contrast settings.

3.

Electrical and Optical Characteristics and Performance

3.1 Main Power Supply

3.1.1 Input characteristics

Items Condition Spec Note

AC Input Voltage range Universal input full range 90~264Vac

AC Input Voltage rating Universal input full range 100~240Vac

AC input frequency range 90~264Vac 47~63Hz

AC input frequency rating 100~240Vac 50~60Hz

4

Acer Acer –LCD-B&V223HQ

A

AC Input Current

Inrush Current

AC-DC power Efficiency

Note2. Before each test, the buck capacitor need to be discharged.
Before each test, it must be 10 minutes at least after the latest test.
Hot star not component be damaged.

3.1.2 Output characteristics

Items Condition Spec Note

100Vac,cold star,25°C 40A (max)

240Vac,cold star,25°C 60A(max)

DC output full loading ≥75%

100Vac 1.2A(max)

240Vac 0.6A(max)

See Note2

Ripple and Noise

DC Output Voltage

DC output loading capability

Rise Time

Dynamic load change

Hold-up time

Overshoot

Turn on delay time

Power management See Table-1

Note3: Paralleled a 0.1uF ceramic Cap. And 47uF aluminum Cap. Between the end of DC loading side,
Measured band-width=20MHz.

+16V output <560mv

+5V output <150mv

16v loading:0.3A~2.2A
5v loading:0.75A~1.8A

5v

loading:0.04A~1.8

16V loading: 0A

Vcc5V/1.8A,

<50mS

AC input: 100V~240V >10mS

<10%

<2S

Vcc16V:15.2V~18.5V

Vcc5V: 4.75V~5.25V

Vcc16V: 15.2V~20V
Vcc5V: 4.95V~5.45V

Vcc16V/2.2A

See note 3

For system
active

For power

saving or DC

3.1.3 Protection characteristics

off

Protection Condition Spec

OPP(Over Power protection) nominal AC input 60(min)

SCP(short circuit protection)

OVP(Over voltage protection)
OTP(Over temperature

Fuse protection

For 5V output it is must
be shorted before F802

with auto-recovery function

Table-1

Status

Power On on on active ≤ 55W Blue

Power Saving

Power Off -- -- -- < 1W Off

H-sy

nc

V-sy

nc

off on blanked < 2W Orange

on off blanked < 2W Orange

off off blanked < 2W Orange

Video Power LED

5

Acer Acer –LCD-B&V223HQ

3.2 Backlight

Panel:

Items Specification

Lamp 4 CCFL

Input Voltage 15.2V~18.5V

Input current

On/Off switch level

1.6A (Typ.), 2.2A (Max.)

5.5V≧Von≧ 2.0 V (on)

-0.3v ≤ Voff ≤ 0.8 V (off)

Brightness PWM duty

CCFL operating Voltage

CCFL Current

CCFL startup voltage

Operating frequency 40~80 KHz
Protect delay time

Efficiency ≥70%(with dummy load)

3.3 Brightness output

The test to verify specifications in this section shall be performed under the following standard conditions

unless otherwise noted.

Temperature : 25 ± 5°C
Test pattern : white
Video Resolution : 1680 x 1050
Video input level : 700 mV ± 2%
Warm-up time : 30 minutes

35%~100%

PWM:High=3.3V(3.0~3.6V),Low=0.0V

750Vrms (Typ.),

2.0 mA (min.)(With PWM Dim)

7.0mA (Typ.)

8.0mA (Max.)

≧1700 Vrms (0˚C)

> 1 second

Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall

≥ 250 cd/m2 (as panel spec)

3.4 White balance

The test standard conditions refer to Sec 3.3.(Brightness control is at 100 contrast control is at 50 )

Chromaticity Coordinate

x y

Cool

Warm

User

Mode

9300K 0.283 ± 0.030 0.297 ± 0.030

6500K 0.313 ± 0.030 0.329 ± 0.030

Panel While x Panel While y

3.5 Brightness uniformity

The test standard conditions refer to Sec 3.4.

)(backlight points nine of luminance Min.
)(backlight points nine of luminance Max.

(4)

%≥75

6

Acer Acer –LCD-B&V223HQ

L/2

4 6

1 2

7

4.

Input / Output Signal Specifications

4.1 Video signals

Analog RGB signal: 0.7Vp-p (Input impedance = 75 Ohm)

Sync: TTL level (Input impedance ≧ 1k Ohm)

5

8

Fig.3

L/10

W/10

3

9

W/2

Positive and negative sync of Separate Horizontal/Vertical Sync

Digital : TMDS Signal: (min) ±200mVpp@24Bit

4.2 Signal Timing

Through D-SUB/DVI connectors, this unit can support FH= 31.5~84 KHz, Fv=56~76Hz, with
maximum pixel clock 165MHz input signal and WSXGA+ output. Modes details as below:

VESA MODES

Horizontal Vertical

Mode Resolution Total

640*480@60Hz 31.469 N 59.941 N 25.175

VGA

SVGA

XGA

VESA

SXGA

640*480@72Hz 37.861 N 72.809 N 31.500
640*480@75Hz 37.500 N 75.000 N 31.500
800*600@56Hz 35.156 P 56.250 P 36.000
800*600@60Hz 37.879 P 60.317 P 40.000
800*600@72Hz 48.077 P 72.188 P 50.000
800*600@75Hz 46.875 P 75.000 P 49.500
1024*768@60Hz 48.363 N 60.004 N 65.000
1024*768@70Hz 56.476 N 70.069 N 75.000
1024*768@75Hz 60.023 P 75.029 P 78.750
1152*864@75Hz 67.500 P 75.000 P 108.000
1280*960@60Hz 60.000 P 60.000 P 108.000
1280*768@75Hz 60.289 N 74.893 P 102.25
1280*1024@60Hz 63.981 P 60.020 P 108.000
1280*1024@75Hz 79.976 P 75.025 P 135.000

Nominal

Frequency

+/-0.5KHz

7

Sync

Polarity

Nominal

Frequency

+/-1Hz

Sync

Polarity

Nominal

Pixel

Clock
(MHz)

Acer Acer –LCD-B&V223HQ

SXGA+

UXGA

WXGA

WXGA+
WSXGA+
WSXGA+

EGA

VGA

SVGA

XGA

1152*870@75Hz 68.681 N 75.062 N 100.00

XGA

1400x1050@60Hz 65.317 N 59.978 N 121.75
1600*1200@60Hz 75.000 P 60.000 P 162.000
1360*768@60Hz 47.712 P 60.015 P 85.5
1280x800@60Hz 49.702 59.81 83.5
1440*900(Red)@60Hz 55.469 P 59.901 N 88.75
1680*1050@60Hz 65.290 N 59.954 N 146.250
1920*1080@60Hz 67.500 P 60 P 148.5

IBM MODES

640*350@70Hz 31.469 P 70.087 N 25.175
720x400@70Hz 31.469 N 70.087 P 28.322

MAC MODES

640*480@66.7Hz 35.000 P 66.667 P 30.240
832*624@75Hz 49.725 N 74.550 N 57.283
1024*768@75Hz 60.241 N 74.927 N 80.000

Other MODES

1024*768@72Hz 57.669 N 72.086 N 78.434

Note: 1. Non-interlace signals only (An interlace signal cannot be display)

2. Please refer to F/W specification for more detail

3. Each frequency of Power Macintosh and Sun Ultra is a reference value

4.3 Timing requirements

The LCD monitor must be capable of displaying standard resolutions within the vertical frequency range of

56 ~ 75 Hz and the horizontal scan range of 31.5 ~ 84 KHz with maximum pixel clock of 170MHz.

Vertical / Horizontal Sync polarity: positive or negative.

If input signal is out of range of horizontal 31.5~84 KHz or vertical 56-76Hz, or pixel clock large than 165MHz,

message “Input Not Supported” is shown on screen.

4.4 DDC date

V223HQ Analog

0 1 2 3 4 5 6 7 8 9 A B C D E F

00 FF FF FF FF FF FF 00 04 72 70 00 00 00 00 00

0

00 00 01 03 08 2F 1E 78 EA DE 95 A3 54 4C 99 26

1

0F 50 54 BF EF 90 A9 40 71 4F 81 40 8B C0 95 00

2

95 0F 90 40 B3 00 02 3A 80 18 71 38 2D 40 58 2C

3

45 00 DD 0C 11 00 00 1F 00 00 00 FD 00 38 4B 1F

4

54 11 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30

5

30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC

6

00 56 32 32 33 48 51 0A 20 20 20 20 20 20 00 5F

7

V223HQ DVI

0 1 2 3 4 5 6 7 8 9 A B C D E F

00 FF FF FF FF FF FF 00 04 72 70 00 00 00 00 00

0

00 00 01 03 80 2F 1E 78 EA DE 95 A3 54 4C 99 26

1

0F 50 54 BF EF 90 A9 40 71 4F 81 40 8B C0 95 00

2

95 0F 90 40 B3 00 02 3A 80 18 71 38 2D 40 58 2C

3

8

Acer Acer –LCD-B&V223HQ

45 00 DD 0C 11 00 00 1F 00 00 00 FD 00 38 4B 1F

4

54 11 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30

5

30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC

6

00 56 32 32 33 48 51 0A 20 20 20 20 20 20 00 E7

7

B223 Analog
B223 Analog
V223W A Analog(OD)
V223W A DVI(OD)
B223W A Analog(OD)
B223W A DVI(OD)

4.5 Audio signal

Items Specification

Input impedance

Frequency response range

Signal to noise ratio

Output power

5.

Function Specifications

All the tests to verify specifications in this section shall be performed under the following standard conditions

unless otherwise noted. The standard conditions are:

Temperature : 25 ± 5°C
Warm-up time : 30 minutes minimum
Checking display modes : All the specified modes

5.1 Panel general specifications

5.1.1 General specifications

Supplier AUO

Model name M215HW01 V0

≧ 10K ohm

200Hz – 10kHz

≧ 40 dB

≧ 1.5 W + 1.5 W ( 10%THD )

Display Area 476.64(H)x268.11(V) mm

Pixel Pitch 0.248 x 0.248 mm

Display Colors: 16.7 Million (RGB 8-bit data)

Number of Pixel 1920x1080 pixels

Pixel Arrangement RGB vertical stripe

Brightness 300cd/m2 (Typ.) 240cd/m2 (Min.)

Contrast Ratio 1000:1 (Typ.), 600:1(Min)

Viewing Angle Hor:170°, Ver: 160°(Typ, CR>10)

Brightness Uniformity

Display Mode Normally White

Response
Time(Tr+Tf)

Min/Max≧0.75

5ms (Typ.), 8ms (Max.)

Surface Treatment Anti-glare, Hard coating (3H)

Lamp 4 CCFL

9

Acer Acer –LCD-B&V223HQ

Control

i

T

Notes: Other second source panel please refer to the panel specifications.

5.1.2 LCD module defects

LCD module defects check follows IIS. Details refer to panel approval sheet.

Keypad Function

5.1.3

Control buttons

A. When OSD un-displays, press [AUTO] to perform auto-adjustment

[AUTO]

[MENU]

[►], [◄]

[e Color ]

B. When OSD displays, press [AUTO] to return to previous level menu
C. When “e Color OSD” OSD displays, press [AUTO] to exit the OSD

A. When OSD isn’t shown on screen, press [MENU] to enter OSD interface.The OSD

interface uses “ACER eColor Management” and “User” to instead “Contrast” and
“Brightness” separately.When press “ACER eColor Management” to show “e Color
OSD”,and press “User” to show OSD interface before. The translations of “ACER

eColor Management” and “User” are always English.
B. When OSD displays, press [MENU] to perform function of menu icon that is
highlight or enter next level menu

A. When “MENU OSD” displays, press these keys to change the contents of an

adjustment item, or change an adjustment value

B. When “MENU OSD” un-displays, if it is with audio, press [►] to show “Audio” OSD

and increase the volume, press [◄] to show “Audio” OSD and decrease the
volume; else it has no use to press these keys.

A. When OSD un-displays, press [e Color] to show “e Color OSD”,and press again

the OSD can not disappear,but the time of “e Color OSD”disappearing is reseted
10 second again.

B.When OSD disappear not including “e Color OSD”,press [e Color] to show “e Color

OSD” OSD,the OSD before disappears,but the parameters of it should be saved

[POWER] Power on or power off the monitor

Hot Key Operation

5.1.4

FUNCTION

FACTORY
MODE

5.2 OSD Structure

The On-Screen Display (OSD) shall be an easy to use icon based menu through keypad OSD buttons or remote

control unit. The unit shall leave the factory with all OSD controls set to their

default values.

First Second Third

Brightnes
s

HOT KEY OPERATION

e Color AUTO MENU ◄ ► POWER

● ON

mpower

ACER eColor
Management

User

e

ng

echnolo

Contrast

---

0 ~ 100

DESCRIPTION

Press [e Color] and then press [POWER]
for DC power on. OSD menu will be
shown with “F” on the left top. Select “F”
for entering factory mode.

Default Value

Standard mode
User mode

50

10

Acer Acer –LCD-B&V223HQ

NO-EME

S

i

I

Image

Position

Color

Languag
e

OSD

Input
(Dual)

nput

(Analg

Focus
Clock
H. Position
V. Position
Warm (6500K)
Cool (9300K)

User

English English
Deutsch Deutsch
Español Español

简体中文
繁體中文

Français Français
Italiano Italiano

日本語

H. Position
V. Position
OSD Timeout
Analog
Digital
DDC/CI ON/OFF

DDC/CI ON/OFF

Hollands
Русский

EMEA

uomala

Brightnes
s

---

---

---

---

--- ---

--- ---
Red

Green
Blue

--- ---

--- ---

--- ---

--- ---

--- ---

--- ---

--- ---

--- ---

---

---

---

--- --- ---

--- --- --­ ON

ON

0 ~ 100

0 ~ 100
0 ~ 100
0 ~ 100
0 ~ 100

0 ~ 100
0 ~ 100
0 ~ 100

0 ~ 100 50
0 ~ 100 50
10~ 120 20

Text mode 50
Standard

Graphics

Movie mode 56
User mode

Text mode 44
Standard

Graphics

Movie mode 77
Depend on each

50 ○1
50
50

80
80
80

English

50
60

77

77
97

Resolution
H. Freq

Info

Reset
Exit

V. Freq
Analog/Digital

S/N

--- --- --- ---

--- --- --- ---

Notes; ○1 Clock default 50 is for Visa timing. Others depend on timing.

--- --- ---

--- --- ---

--- --- ---

--- --- ---

ET000….0000(22)

11

Acer Acer –LCD-B&V223HQ

6. SOP of firmware upgrade

6.1 Operational condition:

Equipment: PC, ISP card, signal cable and power cable.

ESD requirements: antistatic wrists, antistatic gloves (fingers), and connecting cable

Name of ISP program: ISP_Tool_v3.7.5.3

Manufacture of FW IC：PMC/SST/MX

6.2 Operational steps:

1. Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state.

2. Adjust ISP programming

Firstly, double click ISP_Tool_v3.7.5EXEI and open ISP program, then select “Device”, next select

manufacturer model of FW IC, which should be correspondent with that of PCBA FW IC. Double click
Figure One.

One port of ISP

program card

is connected to

PC print port.

FW IC

Model

Secondly﹐download FW software: first select “READ”, and then load FW software in Rooter

(Fig.2).

12

Acer Acer –LCD-B&V223HQ

FW software

rooter

Software

Checksum

Thirdly, select “Connect” and enter ISP MODE as in the following Figure 3.

13

Acer Acer –LCD-B&V223HQ

Fourthly, select “AUTO”, and keep its default value. Click “RUN” for beginning programming. There

will be prompting if programming is OK.

Note: if programming fails or success rate is not high, click “Config” and adjust its speed in “E2PROM

DEVICE SETTING”

14

Acer Acer –LCD-B&V223HQ

prog

g

After connecting, AC ON,

DC ON

OK

Open ISP program

OK

Choose manufacturer

and model of FW IC

OK

LOAD FW software

OK

Click Connect and enter

ISP MODE

OK

◆Flowing chart

Click AUTO and RUN for

beginning programming

OK

Turn off power if

ramming is OK

Choose Config

and adjust

programmin

NG

15

Acer Acer –LCD-B&V223HQ

02. Flat Panel Specification

16